Answer
The 1980s and 1990s saw great success for Athletic Club and Real Sociedad in the La Liga. Athletic Club won their first La Liga title in 32 years in 1983–84, and went on to win two more in 1987–88 and 1990–91. Real Sociedad won their first La Liga title in 40 years in 1980–81, and went on to win two more in 1981–82 and 1987–88.